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Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

if_fddi.h (4369B)

    

  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. /*
  3.  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  4.  *		operating system.  INET is implemented using the BSD Socket
  5.  *		interface as the means of communication with the user level.
  6.  *
  7.  *		Global definitions for the ANSI FDDI interface.
  8.  *
  9.  * Version:	@(#)if_fddi.h	1.0.3	Oct  6 2018
  10.  *
  11.  * Author:	Lawrence V. Stefani, <stefani@yahoo.com>
  12.  * Maintainer:	Maciej W. Rozycki, <macro@orcam.me.uk>
  13.  *
  14.  *		if_fddi.h is based on previous if_ether.h and if_tr.h work by
  15.  *			Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  16.  *			Donald Becker, <becker@super.org>
  17.  *			Alan Cox, <alan@lxorguk.ukuu.org.uk>
  18.  *			Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
  19.  *			Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
  20.  *
  21.  *		This program is free software; you can redistribute it and/or
  22.  *		modify it under the terms of the GNU General Public License
  23.  *		as published by the Free Software Foundation; either version
  24.  *		2 of the License, or (at your option) any later version.
  25.  */
  26. #ifndef _LINUX_IF_FDDI_H
  27. #define _LINUX_IF_FDDI_H
  29. #include <linux/types.h>
  31. /*
  32.  *  Define max and min legal sizes.  The frame sizes do not include
  33.  *  4 byte FCS/CRC (frame check sequence).
  34.  */
  35. #define FDDI_K_ALEN		6	/* Octets in one FDDI address */
  36. #define FDDI_K_8022_HLEN	16	/* Total octets in 802.2 header */
  37. #define FDDI_K_SNAP_HLEN	21	/* Total octets in 802.2 SNAP header */
  38. #define FDDI_K_8022_ZLEN	16	/* Min octets in 802.2 frame sans
  39. 					   FCS */
  40. #define FDDI_K_SNAP_ZLEN	21	/* Min octets in 802.2 SNAP frame sans
  41. 					   FCS */
  42. #define FDDI_K_8022_DLEN	4475	/* Max octets in 802.2 payload */
  43. #define FDDI_K_SNAP_DLEN	4470	/* Max octets in 802.2 SNAP payload */
  44. #define FDDI_K_LLC_ZLEN		13	/* Min octets in LLC frame sans FCS */
  45. #define FDDI_K_LLC_LEN		4491	/* Max octets in LLC frame sans FCS */
  46. #define FDDI_K_OUI_LEN		3	/* Octets in OUI in 802.2 SNAP
  47. 					   header */
  49. /* Define FDDI Frame Control (FC) Byte masks */
  50. #define FDDI_FC_K_CLASS_MASK		0x80	/* class bit */
  51. #define FDDI_FC_K_CLASS_SYNC		0x80
  52. #define FDDI_FC_K_CLASS_ASYNC		0x00
  53. #define FDDI_FC_K_ALEN_MASK		0x40	/* address length bit */
  54. #define FDDI_FC_K_ALEN_48		0x40
  55. #define FDDI_FC_K_ALEN_16		0x00
  56. #define FDDI_FC_K_FORMAT_MASK		0x30	/* format bits */
  57. #define FDDI_FC_K_FORMAT_FUTURE		0x30
  58. #define FDDI_FC_K_FORMAT_IMPLEMENTOR	0x20
  59. #define FDDI_FC_K_FORMAT_LLC		0x10
  60. #define FDDI_FC_K_FORMAT_MANAGEMENT	0x00
  61. #define FDDI_FC_K_CONTROL_MASK		0x0f	/* control bits */
  63. /* Define FDDI Frame Control (FC) Byte specific values */
  64. #define FDDI_FC_K_VOID			0x00
  65. #define FDDI_FC_K_NON_RESTRICTED_TOKEN	0x80
  66. #define FDDI_FC_K_RESTRICTED_TOKEN	0xC0
  67. #define FDDI_FC_K_SMT_MIN		0x41
  68. #define FDDI_FC_K_SMT_MAX		0x4F
  69. #define FDDI_FC_K_MAC_MIN		0xC1
  70. #define FDDI_FC_K_MAC_MAX		0xCF
  71. #define FDDI_FC_K_ASYNC_LLC_MIN		0x50
  72. #define FDDI_FC_K_ASYNC_LLC_DEF		0x54
  73. #define FDDI_FC_K_ASYNC_LLC_MAX		0x5F
  74. #define FDDI_FC_K_SYNC_LLC_MIN		0xD0
  75. #define FDDI_FC_K_SYNC_LLC_MAX		0xD7
  76. #define FDDI_FC_K_IMPLEMENTOR_MIN	0x60
  77. #define FDDI_FC_K_IMPLEMENTOR_MAX	0x6F
  78. #define FDDI_FC_K_RESERVED_MIN		0x70
  79. #define FDDI_FC_K_RESERVED_MAX		0x7F
  81. /* Define LLC and SNAP constants */
  82. #define FDDI_EXTENDED_SAP		0xAA
  83. #define FDDI_UI_CMD			0x03
  85. /* Define 802.2 Type 1 header */
  86. struct fddi_8022_1_hdr {
  87. 	__u8	dsap;			/* destination service access point */
  88. 	__u8	ssap;			/* source service access point */
  89. 	__u8	ctrl;			/* control byte #1 */
  90. } __attribute__((packed));
  92. /* Define 802.2 Type 2 header */
  93. struct fddi_8022_2_hdr {
  94. 	__u8	dsap;			/* destination service access point */
  95. 	__u8	ssap;			/* source service access point */
  96. 	__u8	ctrl_1;			/* control byte #1 */
  97. 	__u8	ctrl_2;			/* control byte #2 */
  98. } __attribute__((packed));
  100. /* Define 802.2 SNAP header */
  101. struct fddi_snap_hdr {
  102. 	__u8	dsap;			/* always 0xAA */
  103. 	__u8	ssap;			/* always 0xAA */
  104. 	__u8	ctrl;			/* always 0x03 */
  105. 	__u8	oui[FDDI_K_OUI_LEN];	/* organizational universal id */
  106. 	__be16	ethertype;		/* packet type ID field */
  107. } __attribute__((packed));
  109. /* Define FDDI LLC frame header */
  110. struct fddihdr {
  111. 	__u8	fc;			/* frame control */
  112. 	__u8	daddr[FDDI_K_ALEN];	/* destination address */
  113. 	__u8	saddr[FDDI_K_ALEN];	/* source address */
  114. 	union {
  115. 		struct fddi_8022_1_hdr	llc_8022_1;
  116. 		struct fddi_8022_2_hdr	llc_8022_2;
  117. 		struct fddi_snap_hdr	llc_snap;
  118. 	} hdr;
  119. } __attribute__((packed));
  122. #endif /* _LINUX_IF_FDDI_H */